Classes / Data Groups searching

Rather than using scan, is it not less resource-hungry to do something like:

it seems you are right.

 scan

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    timing on
when HTTP_REQUEST {
  scan [HTTP::path] {/hls/%[^/]/playlist.m3u8} stream
}
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) show ltm rule qux raw

 (raw)
---------------------------------
Ltm::Rule Event: qux:HTTP_REQUEST
---------------------------------
Priority                    500
Executions
  Total                     500
  Failures                    0
  Aborts                      0
CPU Cycles on Executing
  Average                 31477
  Maximum                108708
  Minimum                 26020

 getfield

root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) list ltm rule qux
ltm rule qux {
    timing on
when HTTP_REQUEST {
  set test [getfield [HTTP::path] "/" 3]
}
}
root@(ve11c)(cfg-sync In Sync)(Active)(/Common)(tmos) show ltm rule qux raw

 (raw)
---------------------------------
Ltm::Rule Event: qux:HTTP_REQUEST
---------------------------------
Priority                    500
Executions
  Total                     500
  Failures                    0
  Aborts                      0
CPU Cycles on Executing
  Average                 26278
  Maximum                104980
  Minimum                 22000